We use SASS when building custom themes, and sometimes clients need a quick change made which is easier to do on the server rather than locally and pushing new changes. To that end, we've installed SASS on our server to watch for file changes. The problem is, if we use the WordPress Appearance Editor to edit SASS files, it defaults to tabs instead of spaces and we use spaces in the office. So SASS compiler (transpiler?) throws an error.
Is there any way to force the WordPress Appearance Editor to use Spaces instead of Tabs? I tried a quick search but everything seemed to be related to the WYSIWYG editor in pages/posts.